Question

In: Physics

A wheel slows from 500 rad/s to rest in 80.0 seconds due to a frictional force...

A wheel slows from 500 rad/s to rest in 80.0 seconds due to a frictional force that is applied to the outer rim of the wheel. Treat the wheel as a solid disk with radius R = 12.0 cm and mass M = 350 grams. What is the magnitude of the frictional force that causes the wheel to slow to a stop?

Expert Solution

Given:

Initial angular velocity of the wheel,

Final angular velocity of the wheel,

Time,

Radius of the wheel,

Mass of the wheel,

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Moment of inertia of a solid disk,

Torque = Force *Distance from the axis of rotation

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First, find the angular deceleration of the wheel

Use formula

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Now consider the wheel

Net Torque = Moment of inertia*Angular acceleration

ANSWER:

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genius_generous answered 2 years ago

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